Contacts of the strand formed by residues 267 - 270 (chain G) in PDB entry 2PGW
Residue contacts within the protein are
derived with the CSU software (Sobolev V., Sorokine A.,
Prilusky J., Abola E.E. and Edelman M. (1999) Automated
analysis of interatomic contacts in proteins.
Bioinformatics, 15, 327-332). A
short description of the analytical approach
is given at the end of the page.
Note:
Non-standard 3 letter residue
codes indicate a heterogroup. To identify
and analyse, use LPC software
Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC - hydrophobic-hydrophilic contact (destabilizing contact)
+/- - indicates presence/absence of a specific contacts
* - indicates residues forming contacts by their side chain
(including CA atoms)
Residues in contact with MSE 267 (chain G).
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Specific contacts
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Residue Dist Surf HB Arom Phob DC
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204D HIS* 4.3 17.9 - - + +
194G ARG* 4.8 0.2 - - - +
220G PHE* 3.3 38.4 - - + -
244G ILE 4.0 1.6 + - - -
245G VAL* 3.4 16.0 - - + +
246G ALA 3.1 22.7 + - - -
265G ALA* 3.4 6.9 - - - +
266G ASP* 1.3 79.5 - - - +
268G ILE* 1.3 71.1 + - - +
293G LEU* 4.8 4.0 - - - -
294G LYS* 3.1 39.3 - - + +
296G CYS* 3.7 21.5 - - + +
321G ASP* 3.8 33.4 - - - +
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Residues in contact with ILE 268 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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245G VAL* 4.5 0.7 - - - -
246G ALA* 3.9 5.2 - - + +
250G ALA* 3.8 25.4 - - + -
256G VAL* 3.8 30.5 - - + +
259G ILE* 4.1 27.4 - - + -
260G CYS* 3.9 19.3 - - - -
265G ALA* 5.0 0.4 - - + -
267G MSE 1.3 84.9 - - - +
269G CYS* 1.3 60.2 + - - +
270G ILE* 3.7 17.9 + - + -
288G ALA* 4.7 5.6 - - + -
293G LEU* 4.5 9.4 - - + -
294G LYS 3.2 4.3 + - - +
295G ILE* 3.4 16.7 - - + +
296G CYS 2.9 24.0 + - - +
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Residues in contact with CYS 269 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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222G GLU* 3.8 23.6 - - - +
245G VAL* 4.0 13.4 - - + +
246G ALA 2.8 17.5 + - - +
247G ASP* 3.5 28.3 - - - +
268G ILE* 1.3 71.9 - - - +
270G ILE* 1.3 62.6 + - - +
274G GLU* 4.6 0.3 - - - +
296G CYS* 3.0 34.1 - - + -
298G HIS* 3.5 24.7 - - - -
325G GLN* 4.0 8.3 - - - -
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Residues in contact with ILE 270 (chain G).
Click here for Legend to table.
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Specific contacts
---------------------------
Residue Dist Surf HB Arom Phob DC
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250G ALA 3.5 23.1 - - - +
251G PHE 3.5 18.2 - - - +
256G VAL* 3.9 22.7 - - + -
268G ILE* 3.9 17.0 - - + -
269G CYS* 1.3 76.1 - - - +
271G GLY* 1.3 69.1 + - - +
274G GLU* 3.5 10.3 - - + +
275G ILE* 3.9 13.7 - - + -
281G MSE 3.1 30.9 - - + +
284G ALA* 4.6 6.3 - - + -
295G ILE* 4.1 20.0 - - + -
296G CYS 2.9 7.4 + - - +
297G ILE* 3.4 1.2 - - - -
298G HIS* 3.1 15.0 + - - +
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A short description of the
analytical approach
The contact analysis used in this page
is based upon the approach
developed in:
Sobolev V., Wade R.C., Vriend G.
and Edelman M. PROTEINS (1996)
25, 120-129.
Contact legitimacy depends on the hydrophobic-hydrophilic
properties of the contacting atoms. In order to
define it, for each inter-atomic contact,
eight atom classes have been introduced:
I Hydrophilic - N and O that can donate and accept hydrogen bonds
(e.g., oxygen of hydroxyl group of Ser. or Thr)
II Acceptor - N or O that can only accept a hydrogen bond
III Donor - N that can only donate a hydrogen bond
IV Hydrophobic - Cl, Br, I and all C atoms that are not in
aromatic rings and do not have a covalent bond to
a N or O atom
V Aromatic - C in aromatic rings irrespective of any other
bonds formed by the atom
VI Neutral - C atoms that have a covalent bond to at least one
atom of class I or two or more atoms from class II
or III; atoms; S, F, P, and metal atoms in all cases
VII Neutral-donor - C atoms that have a covalent bond with only one
atom of class III
VIII Neutral-acceptor - C atoms that have a covalent bond with only
one atom of class II
For each pair of contacts the state of legitimacy
is shown below:
Legend:
+, legitimate
-, illegitimate
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Atomic class I II III IV V VI VII VIII
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I (Hydrophilic) + + + - + + + +
II (Acceptor) + - + - + + + -
III (Donor) + + - - + + - +
IV (Hydrophobic) - - - + + + + +
V (Aromatic) + + + + + + + +
VI (Neutral) + + + + + + + +
VII (Neutral-donor) + + - + + + - +
VIII (Neutral-acceptor) + - + + + + + -
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Warning!
Atom classes for heterogroups are automatically
assigned based on the atomic coordinates. However, in
three cases (see below) the automatic assignment
is currently ambiguous. In these
cases, the user is advised to manually analyse
the full list of contacts using
LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are
considered "aromatic" (Class V) if the ring is approximately
planar, and "hydrophobic" (Class IV) or "neutral" (Classes
VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
"hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
"carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).
Please E-mail any
questions and/or suggestions concerning this page to
Vladimir.Sobolev@weizmann.ac.il